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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> *  Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *  or more contributor license agreements.  See the NOTICE file</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> *  distributed with this work for additional information</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> *  regarding copyright ownership.  The ASF licenses this file</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> *  to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *  "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *  with the License.  You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *    <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing,</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> *  software distributed under the License is distributed on an</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> *  KIND, either express or implied.  See the License for the</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> *  specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> *  under the License.</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> org.apache.mina.example.proxy;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.io.DataInputStream;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.DataOutputStream;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.net.ServerSocket;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.net.Socket;
<a class="jxr_linenumber" name="27" href="#27">27</a>  
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> org.apache.mina.proxy.handlers.socks.SocksProxyConstants;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> org.apache.mina.proxy.utils.ByteUtilities;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.ietf.jgss.GSSContext;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.ietf.jgss.GSSCredential;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.ietf.jgss.GSSException;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.ietf.jgss.GSSManager;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.ietf.jgss.Oid;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> org.slf4j.Logger;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> org.slf4j.LoggerFactory;
<a class="jxr_linenumber" name="37" href="#37">37</a>  
<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> * Socks5GSSAPITestServer.java - Basic test server for SOCKS5 GSSAPI authentication.</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> * </em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> * NOTE: Launch this program with the following params in a pre-configured Kerberos V env.</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * Do not forget to replace &lt; ... &gt; vars with your own values.</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * </em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * -Djava.security.krb5.realm=&lt;your_krb_realm&gt; </em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * -Djavax.security.auth.useSubjectCredsOnly=false </em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> * -Djava.security.krb5.kdc=&lt;your_kdc_hostname&gt;</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment"> * -Djava.security.auth.login.config=${workspace_loc}\Mina2Proxy\src\bcsLogin.conf</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <em class="jxr_javadoccomment"> * -Dsun.security.krb5.debug=true </em>
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment"> * </em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://mina.apache.org" target="alexandria_uri">http://mina.apache.org</a>"&gt;Apache MINA Project&lt;/a&gt;</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment"> * @since MINA 2.0.0-M3</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> Socks5GSSAPITestServer {
<a class="jxr_linenumber" name="54" href="#54">54</a>  
<a class="jxr_linenumber" name="55" href="#55">55</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> Logger logger = LoggerFactory
<a class="jxr_linenumber" name="56" href="#56">56</a>              .getLogger(Socks5GSSAPITestServer.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="57" href="#57">57</a>  
<a class="jxr_linenumber" name="58" href="#58">58</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     * NOTE : change this to comply with your Kerberos environment.</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="61" href="#61">61</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String SERVICE_NAME = <span class="jxr_string">"host/myworkstation.local.network"</span>;
<a class="jxr_linenumber" name="62" href="#62">62</a>  
<a class="jxr_linenumber" name="63" href="#63">63</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="64" href="#64">64</a>  <em class="jxr_javadoccomment">     * Selected mechanism message: advertises client to use SocksV5 protocol with</em>
<a class="jxr_linenumber" name="65" href="#65">65</a>  <em class="jxr_javadoccomment">     * GSSAPI authentication.</em>
<a class="jxr_linenumber" name="66" href="#66">66</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="67" href="#67">67</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] SELECT_GSSAPI_AUTH_MSG = <strong class="jxr_keyword">new</strong> byte[] {
<a class="jxr_linenumber" name="68" href="#68">68</a>              SocksProxyConstants.SOCKS_VERSION_5,
<a class="jxr_linenumber" name="69" href="#69">69</a>              SocksProxyConstants.GSSAPI_AUTH };
<a class="jxr_linenumber" name="70" href="#70">70</a>  
<a class="jxr_linenumber" name="71" href="#71">71</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     * Simulates a Socks v5 server using only Kerberos V authentication.</em>
<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="74" href="#74">74</a>  <em class="jxr_javadoccomment">     * @param localPort the local port used to bind the server</em>
<a class="jxr_linenumber" name="75" href="#75">75</a>  <em class="jxr_javadoccomment">     * @throws IOException</em>
<a class="jxr_linenumber" name="76" href="#76">76</a>  <em class="jxr_javadoccomment">     * @throws GSSException</em>
<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> doHandShake(<strong class="jxr_keyword">int</strong> localPort) <strong class="jxr_keyword">throws</strong> IOException,
<a class="jxr_linenumber" name="79" href="#79">79</a>              GSSException {
<a class="jxr_linenumber" name="80" href="#80">80</a>          ServerSocket ss = <strong class="jxr_keyword">new</strong> ServerSocket(localPort);
<a class="jxr_linenumber" name="81" href="#81">81</a>          GSSManager manager = GSSManager.getInstance();
<a class="jxr_linenumber" name="82" href="#82">82</a>  
<a class="jxr_linenumber" name="83" href="#83">83</a>          <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_comment">         * Create a GSSContext to receive the incoming request from the client. </em>
<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_comment">         * Use null for the server credentials passed in to tell the underlying </em>
<a class="jxr_linenumber" name="86" href="#86">86</a>  <em class="jxr_comment">         * mechanism to use whatever credentials it has available that can be </em>
<a class="jxr_linenumber" name="87" href="#87">87</a>  <em class="jxr_comment">         * used to accept this connection.</em>
<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_comment">         */</em>
<a class="jxr_linenumber" name="89" href="#89">89</a>          GSSCredential serverCreds = manager.createCredential(manager
<a class="jxr_linenumber" name="90" href="#90">90</a>                  .createName(SERVICE_NAME, <strong class="jxr_keyword">null</strong>),
<a class="jxr_linenumber" name="91" href="#91">91</a>                  GSSCredential.DEFAULT_LIFETIME, <strong class="jxr_keyword">new</strong> Oid(
<a class="jxr_linenumber" name="92" href="#92">92</a>                          SocksProxyConstants.KERBEROS_V5_OID),
<a class="jxr_linenumber" name="93" href="#93">93</a>                  GSSCredential.ACCEPT_ONLY);
<a class="jxr_linenumber" name="94" href="#94">94</a>  
<a class="jxr_linenumber" name="95" href="#95">95</a>          <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
<a class="jxr_linenumber" name="96" href="#96">96</a>              logger.debug(<span class="jxr_string">"Waiting for incoming connection on port {} ..."</span>,
<a class="jxr_linenumber" name="97" href="#97">97</a>                      localPort);
<a class="jxr_linenumber" name="98" href="#98">98</a>              GSSContext context = manager.createContext(serverCreds);
<a class="jxr_linenumber" name="99" href="#99">99</a>              Socket socket = ss.accept();
<a class="jxr_linenumber" name="100" href="#100">100</a> 
<a class="jxr_linenumber" name="101" href="#101">101</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="102" href="#102">102</a>                 DataInputStream inStream = <strong class="jxr_keyword">new</strong> DataInputStream(socket
<a class="jxr_linenumber" name="103" href="#103">103</a>                         .getInputStream());
<a class="jxr_linenumber" name="104" href="#104">104</a>                 DataOutputStream outStream = <strong class="jxr_keyword">new</strong> DataOutputStream(socket
<a class="jxr_linenumber" name="105" href="#105">105</a>                         .getOutputStream());
<a class="jxr_linenumber" name="106" href="#106">106</a> 
<a class="jxr_linenumber" name="107" href="#107">107</a>                 logger.debug(<span class="jxr_string">"Got connection from client @ {}"</span>, socket
<a class="jxr_linenumber" name="108" href="#108">108</a>                         .getInetAddress());
<a class="jxr_linenumber" name="109" href="#109">109</a> 
<a class="jxr_linenumber" name="110" href="#110">110</a>                 <em class="jxr_comment">// Read SOCKS5 greeting packet</em>
<a class="jxr_linenumber" name="111" href="#111">111</a>                 byte ver = (byte) inStream.read();
<a class="jxr_linenumber" name="112" href="#112">112</a>                 <strong class="jxr_keyword">if</strong> (ver != 0x05) {
<a class="jxr_linenumber" name="113" href="#113">113</a>                     <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(
<a class="jxr_linenumber" name="114" href="#114">114</a>                             <span class="jxr_string">"Wrong socks version received - "</span> + ver);
<a class="jxr_linenumber" name="115" href="#115">115</a>                 }
<a class="jxr_linenumber" name="116" href="#116">116</a>                 byte nbAuthMethods = (byte) inStream.read();
<a class="jxr_linenumber" name="117" href="#117">117</a>                 byte[] methods = <strong class="jxr_keyword">new</strong> byte[nbAuthMethods];
<a class="jxr_linenumber" name="118" href="#118">118</a>                 inStream.readFully(methods);
<a class="jxr_linenumber" name="119" href="#119">119</a> 
<a class="jxr_linenumber" name="120" href="#120">120</a>                 <strong class="jxr_keyword">boolean</strong> found = false;
<a class="jxr_linenumber" name="121" href="#121">121</a>                 <strong class="jxr_keyword">for</strong> (byte b : methods) {
<a class="jxr_linenumber" name="122" href="#122">122</a>                     <strong class="jxr_keyword">if</strong> (b == SocksProxyConstants.GSSAPI_AUTH) {
<a class="jxr_linenumber" name="123" href="#123">123</a>                         found = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="124" href="#124">124</a>                         <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="125" href="#125">125</a>                     }
<a class="jxr_linenumber" name="126" href="#126">126</a>                 }
<a class="jxr_linenumber" name="127" href="#127">127</a> 
<a class="jxr_linenumber" name="128" href="#128">128</a>                 <strong class="jxr_keyword">if</strong> (!found) {
<a class="jxr_linenumber" name="129" href="#129">129</a>                     <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(
<a class="jxr_linenumber" name="130" href="#130">130</a>                             <span class="jxr_string">"Client does not support GSSAPI authentication"</span>);
<a class="jxr_linenumber" name="131" href="#131">131</a>                 }
<a class="jxr_linenumber" name="132" href="#132">132</a> 
<a class="jxr_linenumber" name="133" href="#133">133</a>                 <em class="jxr_comment">// Send selected mechanism message</em>
<a class="jxr_linenumber" name="134" href="#134">134</a>                 outStream.write(SELECT_GSSAPI_AUTH_MSG);
<a class="jxr_linenumber" name="135" href="#135">135</a>                 outStream.flush();
<a class="jxr_linenumber" name="136" href="#136">136</a> 
<a class="jxr_linenumber" name="137" href="#137">137</a>                 <em class="jxr_comment">// Do the context establishment loop</em>
<a class="jxr_linenumber" name="138" href="#138">138</a>                 byte[] token = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="139" href="#139">139</a> 
<a class="jxr_linenumber" name="140" href="#140">140</a>                 <strong class="jxr_keyword">while</strong> (!context.isEstablished()) {
<a class="jxr_linenumber" name="141" href="#141">141</a>                     byte authVersion = (byte) inStream.read();
<a class="jxr_linenumber" name="142" href="#142">142</a> 
<a class="jxr_linenumber" name="143" href="#143">143</a>                     <strong class="jxr_keyword">if</strong> (authVersion != 0x01) {
<a class="jxr_linenumber" name="144" href="#144">144</a>                         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(
<a class="jxr_linenumber" name="145" href="#145">145</a>                                 <span class="jxr_string">"Wrong socks GSSAPI auth version received: "</span>
<a class="jxr_linenumber" name="146" href="#146">146</a>                                         + authVersion);
<a class="jxr_linenumber" name="147" href="#147">147</a>                     }
<a class="jxr_linenumber" name="148" href="#148">148</a> 
<a class="jxr_linenumber" name="149" href="#149">149</a>                     byte mtyp = (byte) inStream.read();
<a class="jxr_linenumber" name="150" href="#150">150</a>                     <strong class="jxr_keyword">if</strong> (mtyp != 0x01) {
<a class="jxr_linenumber" name="151" href="#151">151</a>                         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a class="jxr_linenumber" name="152" href="#152">152</a>                                 <span class="jxr_string">"Message type should be equal to 1."</span>);
<a class="jxr_linenumber" name="153" href="#153">153</a>                     }
<a class="jxr_linenumber" name="154" href="#154">154</a> 
<a class="jxr_linenumber" name="155" href="#155">155</a>                     <strong class="jxr_keyword">int</strong> len = inStream.readShort();
<a class="jxr_linenumber" name="156" href="#156">156</a>                     token = <strong class="jxr_keyword">new</strong> byte[len];
<a class="jxr_linenumber" name="157" href="#157">157</a>                     inStream.readFully(token);
<a class="jxr_linenumber" name="158" href="#158">158</a>                     logger.debug(<span class="jxr_string">"  Received Token[{}] = {}"</span>, len,
<a class="jxr_linenumber" name="159" href="#159">159</a>                             ByteUtilities.asHex(token));
<a class="jxr_linenumber" name="160" href="#160">160</a> 
<a class="jxr_linenumber" name="161" href="#161">161</a>                     token = context.acceptSecContext(token, 0, token.length);
<a class="jxr_linenumber" name="162" href="#162">162</a> 
<a class="jxr_linenumber" name="163" href="#163">163</a>                     <em class="jxr_comment">// Send a token to the peer if one was generated by acceptSecContext</em>
<a class="jxr_linenumber" name="164" href="#164">164</a>                     <strong class="jxr_keyword">if</strong> (token != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="165" href="#165">165</a>                         logger.debug(<span class="jxr_string">"    Sending Token[{}] = {}"</span>, token.length,
<a class="jxr_linenumber" name="166" href="#166">166</a>                                 ByteUtilities.asHex(token));
<a class="jxr_linenumber" name="167" href="#167">167</a>                         outStream.writeByte(authVersion);
<a class="jxr_linenumber" name="168" href="#168">168</a>                         outStream.writeByte(mtyp);
<a class="jxr_linenumber" name="169" href="#169">169</a>                         outStream.writeShort(token.length);
<a class="jxr_linenumber" name="170" href="#170">170</a>                         outStream.write(token);
<a class="jxr_linenumber" name="171" href="#171">171</a>                         outStream.flush();
<a class="jxr_linenumber" name="172" href="#172">172</a>                     }
<a class="jxr_linenumber" name="173" href="#173">173</a>                 }
<a class="jxr_linenumber" name="174" href="#174">174</a> 
<a class="jxr_linenumber" name="175" href="#175">175</a>                 logger.debug(<span class="jxr_string">"Context Established !"</span>);
<a class="jxr_linenumber" name="176" href="#176">176</a>                 logger.debug(<span class="jxr_string">"Client is {}"</span>, context.getSrcName());
<a class="jxr_linenumber" name="177" href="#177">177</a>                 logger.debug(<span class="jxr_string">"Server is {}"</span>, context.getTargName());
<a class="jxr_linenumber" name="178" href="#178">178</a> 
<a class="jxr_linenumber" name="179" href="#179">179</a>                 <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="180" href="#180">180</a> <em class="jxr_comment">                 * If mutual authentication did not take place, then</em>
<a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_comment">                 * only the client was authenticated to the</em>
<a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_comment">                 * server. Otherwise, both client and server were</em>
<a class="jxr_linenumber" name="183" href="#183">183</a> <em class="jxr_comment">                 * authenticated to each other. </em>
<a class="jxr_linenumber" name="184" href="#184">184</a> <em class="jxr_comment">                 */</em>
<a class="jxr_linenumber" name="185" href="#185">185</a>                 <strong class="jxr_keyword">if</strong> (context.getMutualAuthState()) {
<a class="jxr_linenumber" name="186" href="#186">186</a>                     logger.debug(<span class="jxr_string">"Mutual authentication took place !"</span>);
<a class="jxr_linenumber" name="187" href="#187">187</a>                 }
<a class="jxr_linenumber" name="188" href="#188">188</a> 
<a class="jxr_linenumber" name="189" href="#189">189</a>                 <em class="jxr_comment">// We can now abort the process after a short time as auth is OK</em>
<a class="jxr_linenumber" name="190" href="#190">190</a>                 <em class="jxr_comment">// and finally block will close session</em>
<a class="jxr_linenumber" name="191" href="#191">191</a>                 Thread.sleep(500);
<a class="jxr_linenumber" name="192" href="#192">192</a>             } <strong class="jxr_keyword">catch</strong> (Exception ex) {
<a class="jxr_linenumber" name="193" href="#193">193</a>                 <em class="jxr_comment">//ex.printStackTrace();</em>
<a class="jxr_linenumber" name="194" href="#194">194</a>             } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="195" href="#195">195</a>                 context.dispose();
<a class="jxr_linenumber" name="196" href="#196">196</a>                 socket.close();
<a class="jxr_linenumber" name="197" href="#197">197</a>             }
<a class="jxr_linenumber" name="198" href="#198">198</a>         }
<a class="jxr_linenumber" name="199" href="#199">199</a>     }
<a class="jxr_linenumber" name="200" href="#200">200</a> 
<a class="jxr_linenumber" name="201" href="#201">201</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="202" href="#202">202</a> <em class="jxr_javadoccomment">     * {@inheritDoc}</em>
<a class="jxr_linenumber" name="203" href="#203">203</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="204" href="#204">204</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> main(String[] args) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="205" href="#205">205</a>         <em class="jxr_comment">// Obtain the command-line arguments and parse the port number</em>
<a class="jxr_linenumber" name="206" href="#206">206</a>         <strong class="jxr_keyword">if</strong> (args.length != 1) {
<a class="jxr_linenumber" name="207" href="#207">207</a>             System.err
<a class="jxr_linenumber" name="208" href="#208">208</a>                     .println(<span class="jxr_string">"Usage: java &lt;options&gt; Socks5GSSAPITestServer &lt;localPort&gt;"</span>);
<a class="jxr_linenumber" name="209" href="#209">209</a>             System.exit(-1);
<a class="jxr_linenumber" name="210" href="#210">210</a>         }
<a class="jxr_linenumber" name="211" href="#211">211</a> 
<a class="jxr_linenumber" name="212" href="#212">212</a>         doHandShake(Integer.parseInt(args[0]));
<a class="jxr_linenumber" name="213" href="#213">213</a>         System.exit(0);
<a class="jxr_linenumber" name="214" href="#214">214</a>     }
<a class="jxr_linenumber" name="215" href="#215">215</a> }
</pre>
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